18258 - Service Update. These vehicles were built without anti-abrasion wrap on the engine wire harness designed to prevent potential wear-through of the wire harness insulation over extended periods of time. If insulation wear-through were to occur, damage to the harness wires may result. Damage to individual circuits may result in diagnostic trouble codes (DTC?s) being set. A service engine indicator may be displayed, and the engine may not start, run rough or run in reduced propulsion mode. Dealers will add an anti-abrasion wrap and sleeve to area of contact.